Two possibilities:1. from Harwich to Hook of Hollandhttp://www.stenaline.nl/en/ferry/london/2. from Dover to Calais then by train to Amsterdam (or from Hull to Rotterdam but it seems a bit longer)http://www.poferries.eu/index.html#The shortest crossing is Calais but you need to take the train from Calais to Holland (163 miles / 262 Km to Amsterdam)The following link seems to provide a lot of useful information:http://www.seat61.com/Netherlands.htmPS. The Cutty Sark is located near the centre of Greenwich, in south-east London, close aboard the National Maritime Museum, the former Greenwich Hospital, and Greenwich Park.http://www.rmg.co.uk/cuttysark/
Try the Royal Museums Greenwich, especially the National Maritime Museum if you have time.http://www.rmg.co.uk/And the Top 10 things to see : - Meridian Line - Planetarium - Harrison’s timekeepers - Nelson’s Trafalgar uniform - Voyagers - the Wave - Compass Lounge - horizon screen - Prince Frederick’s barge - Great Hall and Tulip Stairs - 4.5 billion year-old meteorite - Time ball - The Sublime Society of WCF http://www.sublimesocietyofbeefsteaks.org/History/History_and_Context.html